Gaya APA
Elementary Mathematics. (1967).
New York:
MCGraw Hill Book Company.
Gaya Chicago
Elementary Mathematics.
.
New York:
MCGraw Hill Book Company,
1967.
.
Gaya MLA
Elementary Mathematics.
.
New York:
MCGraw Hill Book Company,
1967.
.
Gaya Turabian
Elementary Mathematics.
New York:
MCGraw Hill Book Company,
1967.
.